How long is the flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

There are many flights that can get you from London Gatwick Airport to Washington, D.C. Dulles Intl Airport in 11h 30m. Fly via Virgin Atlantic, Delta, or British Airways to get the fastest option. Airlines will cover a distance of 3683 mi. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from LGW to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport as you normally would.

Most accurate provider : When it comes to deals on London Gatwick Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Gatwick Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Gatwick Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on London Gatwick Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Gatwick Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Gatwick to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Gatwick to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Gatwick to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Dulles Intl.

Can I find deals for business class flights from Gatwick to Dulles Intl?

Yes. Cheapflights offers flight deals from Gatwick to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$443+ Cheap Flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Gatwick to Dulles Intl

Cheapest

Best

Last-minute

One-way

Cheapest flights from Gatwick to Dulles Intl
Explore the most affordable flight options available from Gatwick to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.

Fri 10/233:40 pm -

1 stop32h 40m

Sun 11/87:40 pm -

1 stop10h 15m

Deal found 8/16

$581

Wed 10/143:40 pm -

1 stop32h 40m

Wed 10/2111:15 pm -

1 stop10h 25m

Deal found 8/15

$583

Thu 9/243:40 pm -

1 stop32h 40m

Wed 10/711:20 pm -

1 stop10h 20m

Deal found 8/17

$584

Thu 10/153:40 pm -

1 stop32h 40m

Tue 10/208:30 pm -

1 stop13h 10m

Deal found 8/14

$585

Sat 8/293:40 pm -

1 stop11h 35m

Fri 9/118:30 pm -

1 stop13h 10m

Deal found 8/17

$586

Tue 8/253:40 pm -

1 stop32h 40m

Fri 9/118:30 pm -

1 stop13h 10m

Deal found 8/17

$587

Mon 8/313:40 pm -

1 stop32h 40m

Mon 9/78:30 pm -

1 stop10h 15m

Deal found 8/15

$588

Thu 9/101:00 pm -

1 stop11h 20m

Wed 9/238:30 pm -

1 stop13h 10m

Deal found 8/15

$589

Fri 9/43:40 pm -

1 stop11h 35m

Fri 9/118:30 pm -

1 stop13h 10m

Deal found 8/16

$591

Wed 9/23:40 pm -

1 stop32h 40m

Wed 9/98:30 pm -

1 stop10h 15m

Deal found 8/16

$593

Mon 8/313:40 pm -

1 stop32h 40m

Tue 9/88:30 pm -

1 stop13h 10m

Deal found 8/15

$594

Best flights from Gatwick to Dulles Intl
Discover carefully curated flight deals from Gatwick to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.

Fri 12/410:00 am -

1 stop11h 30m

Mon 12/712:35 pm -

2 stops22h 10m

Deal found 8/14

$617

Fri 9/118:40 pm -

1 stop23h 50m

Mon 9/145:00 pm -

1 stop22h 00m

Deal found 8/13

$633

Sat 10/310:25 am -

1 stop14h 10m

Wed 10/149:45 pm -

1 stop13h 15m

Deal found 8/17

$638

Tue 9/224:25 pm -

1 stop27h 45m

Tue 9/2910:35 pm -

2 stops16h 50m

Deal found 8/13

$652

Fri 1/810:00 am -

2 stops16h 12m

Sat 1/1611:05 am -

2 stops23h 40m

Deal found 8/17

$633

Tue 11/1010:00 am -

1 stop11h 30m

Wed 12/26:40 pm -

1 stop16h 05m

Deal found 8/16

$648

Tue 9/154:25 pm -

1 stop27h 45m

Sat 9/2610:35 pm -

2 stops31h 45m

Deal found 8/13

$675

Sat 11/1410:00 am -

1 stop11h 30m

Wed 12/26:40 pm -

1 stop16h 05m

Deal found 8/16

$653

Sun 12/610:00 am -

2 stops19h 39m

Tue 12/87:30 am -

2 stops20h 30m

Deal found 8/14

$658

Thu 9/39:20 pm -

2 stops22h 50m

Mon 9/710:35 pm -

2 stops16h 50m

Deal found 8/18

$685

Sun 11/810:00 am -

2 stops19h 42m

Thu 11/127:30 am -

2 stops20h 30m

Deal found 8/15

$660

Mon 9/285:00 pm -

1 stop28h 05m

Mon 10/510:15 am -

2 stops18h 25m

Deal found 8/14

$679

Last-minute flights from Gatwick to Dulles Intl
Discover last-minute flight deals from Gatwick to Dulles Intl. Data last updated August 18, 2026 and is based on user searches.

Tue 8/253:40 pm -

1 stop32h 40m

Fri 9/118:30 pm -

1 stop13h 10m

Deal found 8/17

$587

Fri 8/283:40 pm -

1 stop11h 35m

Fri 9/411:20 pm -

1 stop31h 25m

Deal found 8/14

$600

Sat 8/293:40 pm -

1 stop11h 35m

Fri 9/118:30 pm -

1 stop13h 10m

Deal found 8/17

$586

Mon 8/313:40 pm -

1 stop32h 40m

Mon 9/78:30 pm -

1 stop10h 15m

Deal found 8/15

$588

Mon 8/313:40 pm -

1 stop32h 40m

Tue 9/88:30 pm -

1 stop13h 10m

Deal found 8/15

$594

Wed 9/23:40 pm -

1 stop32h 40m

Wed 9/98:30 pm -

1 stop10h 15m

Deal found 8/16

$593

Wed 9/23:40 pm -

1 stop11h 35m

Tue 9/228:30 pm -

1 stop13h 10m

Deal found 8/14

$601

Fri 9/43:40 pm -

1 stop11h 35m

Fri 9/118:30 pm -

1 stop13h 10m

Deal found 8/16

$591

Thu 9/101:00 pm -

1 stop11h 20m

Wed 9/238:30 pm -

1 stop13h 10m

Deal found 8/15

$589

Thu 9/173:40 pm -

1 stop32h 40m

Wed 9/238:30 pm -

1 stop13h 10m

Deal found 8/18

$595

Thu 9/243:40 pm -

1 stop32h 40m

Wed 10/711:20 pm -

1 stop10h 20m

Deal found 8/17

$584

Mon 9/289:25 am -

1 stop12h 20m

Sun 10/118:20 pm -

1 stop16h 30m

Deal found 8/17

$596

One-way flights from Gatwick to Dulles Intl
Search for one-way flight options from Gatwick to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.

Tue 9/159:40 am -

2 stops35h 58m

Deal found 8/15

$443

Thu 9/36:00 am -

2 stops38h 10m

Deal found 8/13

$444

Mon 9/289:40 am -

1 stop30h 05m

Deal found 8/13

$445

Mon 8/3111:35 am -

2 stops32h 35m

Deal found 8/14

$447

Tue 9/12:00 pm -

1 stop25h 07m

Deal found 8/15

$448

Thu 10/2212:40 pm -

1 stop31h 30m

Deal found 8/14

$449

Thu 8/2711:35 am -

2 stops28h 10m

Deal found 8/14

$450

Mon 11/25:00 pm -

2 stops28h 20m

Deal found 8/16

$451

Sat 9/511:35 am -

2 stops32h 49m

Deal found 8/15

$452

Mon 12/77:00 am -

2 stops38h 20m

Deal found 8/16

$454

Find flight deals from Gatwick to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$581 (The Travel House)
One-way from	$443 (Mytrip)
Popular in	June
Cheapest in	February
Average price	$725

Provider with most accurate pricing for London Gatwick-Washington, D.C. Dulles Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for London Gatwick-Washington, D.C. Dulles Intl flights.

Search Deals

From London Gatwick to Washington, D.C. Dulles Intl

Search Deals

One-way flight from London Gatwick to Washington, D.C. Dulles Intl

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($72 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Fri 12/4

10:00 am-4:30 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Mon 12/7

12:35 pm-3:45 pm

2 stops22h 10m

$617

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Fri 9/11

8:40 pm-3:30 pm

1 stop23h 50m

Washington, D.C. Dulles Intl

Mon 9/14

5:00 pm-8:00 pm

1 stop22h 00m

$633

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Fri 1/8

10:00 am-9:12 pm

2 stops16h 12m

Washington, D.C. Dulles Intl

Sat 1/16

11:05 am-3:45 pm

2 stops23h 40m

$633

Quickest round-trip

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Sat 10/3

10:25 am-7:35 pm

1 stop14h 10m

Washington, D.C. Dulles Intl

Wed 10/14

9:45 pm-4:00 pm

1 stop13h 15m

$638

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Tue 11/10

10:00 am-4:30 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Wed 12/2

6:40 pm-3:45 pm

1 stop16h 05m

$648

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Tue 9/22

4:25 pm-3:10 pm

1 stop27h 45m

Washington, D.C. Dulles Intl

Tue 9/29

10:35 pm-8:25 pm

2 stops16h 50m

$652

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Sat 11/14

10:00 am-4:30 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Wed 12/2

6:40 pm-3:45 pm

1 stop16h 05m

$653

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Sun 12/6

10:00 am-12:39 am

2 stops19h 39m

Washington, D.C. Dulles Intl

Tue 12/8

7:30 am-9:00 am

2 stops20h 30m

$658

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Sun 11/8

10:00 am-12:42 am

2 stops19h 42m

Washington, D.C. Dulles Intl

Thu 11/12

7:30 am-9:00 am

2 stops20h 30m

$660

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Tue 9/15

4:25 pm-3:10 pm

1 stop27h 45m

Washington, D.C. Dulles Intl

Sat 9/26

10:35 pm-11:20 am

2 stops31h 45m

$675

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 24 resultsSorted by cheapest first

Most accurate provider: When it comes to deals on London Gatwick Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Gatwick Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Gatwick Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on London Gatwick Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Gatwick Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Gatwick to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Gatwick with our price prediction graph.

LGW-IAD

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?
There are many flights that can get you from London Gatwick Airport to Washington, D.C. Dulles Intl Airport in 11h 30m. Fly via Virgin Atlantic, Delta, or British Airways to get the fastest option. Airlines will cover a distance of 3683 mi. Both multi-stop and nonstop flights can be found to your destination and back.
Can I find deals for flights from Gatwick to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Gatwick to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Gatwick to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Dulles Intl.
Can I find deals for business class flights from Gatwick to Dulles Intl?
Yes. Cheapflights offers flight deals from Gatwick to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$443+ Cheap flights from Gatwick (LGW) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Gatwick to Dulles Intl with Cheapflights

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Cheap flight deals from Gatwick to Dulles Intl

Cheapest flights from Gatwick to Dulles IntlExplore the most affordable flight options available from Gatwick to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.

Explore the most affordable flight options available from Gatwick to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.

Best flights from Gatwick to Dulles IntlDiscover carefully curated flight deals from Gatwick to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.

Discover carefully curated flight deals from Gatwick to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.

Last-minute flights from Gatwick to Dulles IntlDiscover last-minute flight deals from Gatwick to Dulles Intl. Data last updated August 18, 2026 and is based on user searches.

Discover last-minute flight deals from Gatwick to Dulles Intl. Data last updated August 18, 2026 and is based on user searches.

One-way flights from Gatwick to Dulles IntlSearch for one-way flight options from Gatwick to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.

Search for one-way flight options from Gatwick to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.

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Cheapflights Fare Finder

Use the filters below to find and compare flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Gatwick to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Gatwick with our price prediction graph.

Related info for your journey

How long is the flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Gatwick to Dulles Intl that include hotel bookings?

How can I find direct flights from Gatwick to Dulles Intl?

Can I find deals for business class flights from Gatwick to Dulles Intl?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Alternative routes for Gatwick to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Dulles Intl by adding a car rental and/or hotel reservation to your travel itinerary.

Other flights to Dulles Intl

Explore flights to Dulles Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 18, 2026.

Search flights from Gatwick to Dulles Intl by cabin class

Find flights from Gatwick to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Gatwick and Dulles Intl flights

Browse other Gatwick and Dulles Intl flight options. Last updated on August 18, 2026.

Other flights from Gatwick

Browse through other flights departing from Gatwick. Flights are based on user searches made on Cheapflights and were last updated on August 18, 2026.

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Cheapest flights from Gatwick to Dulles Intl
Explore the most affordable flight options available from Gatwick to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.

Best flights from Gatwick to Dulles Intl
Discover carefully curated flight deals from Gatwick to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.

Last-minute flights from Gatwick to Dulles Intl
Discover last-minute flight deals from Gatwick to Dulles Intl. Data last updated August 18, 2026 and is based on user searches.

One-way flights from Gatwick to Dulles Intl
Search for one-way flight options from Gatwick to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.